Here's the template looking down towards the headstock, complete with it's first offspring, a clone of itself.
The neck is 23.5mm (0.92") at the nut end and 25.5mm (1.00") at the point where it goes into the body. The reason I'm not giving thickness at fret positions is because it ain't gonna have frets. Nope. It's for my girlfriend, who's a lot more of a musician than I. She's a singing and piano teacher who also plays violin - so she's used to no frets and wanted it that way (still have side dots though ... I wanna play it too) which suits me fine because frets are fiddly at the best of times and I reckon fret-less basses sound better.
So, it's just a matter of sticking the template to another piece that's cut to "the line" and routing away. The "template" is one of the five pieces.
Two done, three to go (I use the same one as a template for all routings, so there's no drift in variation).
After doing it four times we get this.
The truss rod housing just so happens to be 12mm, the same width as the wood - so all that's to be done is to bandsaw the truss rod slot out of the middle (the third one) before the glue up. Easy. The middle piece sort of chose itself due to a tear out on the fingerboard because the well-trained monkey I have doing my routing forgot to go downstairs on the grain.
Straight flush:
Tomorrow, I need to route two little bits to go on the headstock like the Rickenbacker ears so I can cut the shape (traditional Tele
guitar headstock shape).